Finding the Third Proportional to 239,955 and 555,511.50

Step by Step Solution

1. Step 1: Write the proportion equation
   239,955 : 555,511.50 = 555,511.50 : x
2. Step 2: Convert to fraction form
   239,955/555,511.50 = 555,511.50/x
3. Step 3: Cross multiply
   239,955x = 555,511.50 × 555,511.50
4. Step 4: Simplify right side
   239,955x = 308,593,026,632.25
5. Step 5: Solve for x
   x = 308,593,026,632.25/239,955
6. Step 6: Final answer
   x = 1,286,045.41